The QuadGuard® CZ System has successfully passed the complete NCHRP 350, Test Level 3 test matrix. Higher speed units are available. During head-on design impacts, the QuadGuard® Systems telescope rearward and progressively crush the cartridges to absorb the energy of impact. When design impacted from the side, the QuadGuard® System safely redirects the errant vehicle back toward its original path without gating.